Current imc-pmu code triggers a WARNING with CONFIG_DEBUG_ATOMIC_SLEEP and
CONFIG_PROVE_LOCKING enabled, while running a thread_imc event.
Command to trigger the warning:
[command]# perf stat -e thread_imc/CPM_CS_FROM_L4_MEM_X_DPTEG/ sleep 5
Performance counter stats for 'sleep 5':
On Thu, 2023-01-05 at 19:15 +1100, Andrew Donnellan wrote:
> On Fri, 2022-12-30 at 15:20 +1100, Russell Currey wrote:
> > The pseries platform can support dynamic secure boot (i.e. secure
> > boot
> > using user-defined keys) using variables contained with the PowerVM
> > LPAR
> > Platform KeyStore
On Fri, 2023-01-06 at 15:15 +1100, Michael Ellerman wrote:
> Russell Currey writes:
> > The forthcoming pseries consumer of the secvar API wants to expose
> > a
> > number of config variables. Allowing secvar implementations to
> > provide
> > their own sysfs attributes makes it easy for consumer
On Thu, 2023-01-05 at 18:28 +1100, Andrew Donnellan wrote:
> On Fri, 2022-12-30 at 15:20 +1100, Russell Currey wrote:
> > The forthcoming pseries consumer of the secvar API wants to expose
> > a
> > number of config variables. Allowing secvar implementations to
> > provide
> > their own sysfs attr
Russell Currey writes:
> The forthcoming pseries consumer of the secvar API wants to expose a
> number of config variables. Allowing secvar implementations to provide
> their own sysfs attributes makes it easy for consumers to expose what
> they need to.
>
> This is not being used by the OPAL sec
On Wed, Jan 4, 2023 at 10:58 AM Chancel Liu wrote:
> The parameter "max" of SOC_SINGLE_SX_TLV() means the number of steps
> rather than maximum value. This patch corrects the minimum value to -8
> and the number of steps to 15.
>
> Signed-off-by: Chancel Liu
>
Acked-by: Shengjiu Wang
Best reg
On Thu, Nov 17, 2022 at 04:26:48PM +0800, Yicong Yang wrote:
> It is tested on 4,8,128 CPU platforms and shows to be beneficial on
> large systems but may not have improvement on small systems like on
> a 4 CPU platform. So make ARCH_WANT_BATCHED_UNMAP_TLB_FLUSH depends
> on CONFIG_EXPERT for this
On Thu, Dec 29, 2022 at 10:54:50AM +0100, Andrzej Hajda wrote:
> Forgive me late response - Holidays,
>
> On 22.12.2022 18:21, Andrew Morton wrote:
> > On Thu, 22 Dec 2022 12:46:16 +0100 Andrzej Hajda
> > wrote:
> >
> > > Hi all,
> > >
> > > I hope there will be place for such tiny helper in k
Relocatable kernels must not discard relocations, they need to be
processed at runtime. As such they are included for CONFIG_RELOCATABLE
builds in the powerpc linker script (line 340).
However they are also unconditionally discarded later in the
script (line 414). Previously that worked because th
The powerpc linker script explicitly includes .exit.text, because
otherwise the link fails due to references from __bug_table and
__ex_table. The code is freed (discarded) at runtime along with
.init.text and data.
That has worked in the past despite powerpc not defining
RUNTIME_DISCARD_EXIT becau
Although the powerpc linker script mentions .comment in the DISCARD
section, that has never actually caused it to be discarded, because the
earlier ELF_DETAILS macro (previously STABS_DEBUG) explicitly includes
.comment.
However commit 99cb0d917ffa ("arch: fix broken BuildID for arm64 and
riscv")
Em Thu, Jan 05, 2023 at 05:47:42PM +0530, Athira Rajeev escreveu:
> Perf BPF filter test fails in environment where "kernel-debuginfo"
> is not installed.
I'll apply this to perf/core, for the next merge window, as its more an
improvement than a fix, i.e. we know why it fails, we're just improving
Em Thu, Jan 05, 2023 at 05:34:36PM +0530, Athira Rajeev escreveu:
> While running perf test for bpf, observed that "BPF prologue
> generation" test case fails to compile with clang. Logs below
> from powerpc:
>
> :33:2: error: use of undeclared identifier 'fmode_t'
> fmode_t f_mode = (fmod
Perf BPF filter test fails in environment where "kernel-debuginfo"
is not installed.
Test failure logs:
<<>>
42: BPF filter:
42.1: Basic BPF filtering : Ok
42.2: BPF pinning : Ok
42.3: BPF prologue generation : FAILED!
The function "try_to_find_probe_trace_events" uses return
error code as ENOENT in two places. First place is after
"open_debuginfo" when opening debuginfo fails and secondly,
after when not finding the probe point. This function is
invoked during bpf load and there are other exit points in
this cod
While running perf test for bpf, observed that "BPF prologue
generation" test case fails to compile with clang. Logs below
from powerpc:
:33:2: error: use of undeclared identifier 'fmode_t'
fmode_t f_mode = (fmode_t)_f_mode;
^
:37:6: error: use of undeclared identifier 'f_mode'; di
__xchg will be used for non-atomic xchg macro.
Signed-off-by: Andrzej Hajda
Reviewed-by: Arnd Bergmann
---
v2: squashed all arch patches into one
v3: fixed alpha/xchg_local, thx to l...@intel.com
v4: adjusted indentation (Heiko)
---
arch/alpha/include/asm/cmpxchg.h | 10 +-
arch/arc
On Thu, 5 Jan 2023, Jiri Slaby wrote:
> On 04. 01. 23, 16:15, Ilpo Järvinen wrote:
> > Convert the raise/on parameter in ->dtr_rts() to bool through the
> > callchain. The parameter is used like bool. In USB serial, there
> > remains a few implicit bool -> larger type conversions because some
> >
On Fri, 2022-12-30 at 15:20 +1100, Russell Currey wrote:
> The pseries platform can support dynamic secure boot (i.e. secure
> boot
> using user-defined keys) using variables contained with the PowerVM
> LPAR
> Platform KeyStore (PLPKS). Using the powerpc secvar API, expose the
> relevant variable
On Wed, Jan 04, 2023 at 12:54:18PM -0700, Nathan Chancellor wrote:
> Hi all,
...
> This series has seen my personal test framework, which tests several different
> configurations and architectures, with LLVM tip of tree (16.0.0). I have done
> defconfig, allmodconfig, and allnoconfig builds for arm
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